要允许 OpenShift Container Platform 用户扩展持久性卷声明(PVC)，OpenShift Container Platform 管理员必须创建或更新将 allowVolumeExpansion 设置为 true 的 StorageClass。只有从该类创建的 PVC 可以扩展。
apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
name: gluster-container
provisioner: kubernetes.io/glusterfs
parameters:
resturl: "http://heketi-storage-project.cloudapps.mystorage.com"
restuser: "admin"
secretNamespace: "default"
secretName: "heketi-secret"
allowVolumeExpansion: true
apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
name: gluster-container
provisioner: kubernetes.io/glusterfs
parameters:
resturl: "http://heketi-storage-project.cloudapps.mystorage.com"
restuser: "admin"
secretNamespace: "default"
secretName: "heketi-secret"
allowVolumeExpansion: true
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